In
the evening of 11/22/2016, Tepco announced the radiation monitoring
post in the sea has been suspended due to the quake. The post is
situated at the end of the breakwater of Fukushima plant port. They
cannot monitor the radioactive substance spreading to the Pacific
with this monitoring post out of order.

They
also admitted the underwater fence was damaged, and also the
coolant water got out of the common spent fuel pool due to the quake.
It reportedly spread over 2m * 3m but the exact volume is not
announced.

About
40 minutes after the quake, Tepco announced they found no abnormality
in Fukushima plant however 1m high tsunami was observed reaching
the plant port.